| 摘要 |
PROBLEM TO BE SOLVED: To provide a failure diagnosis apparatus for simply determining an environment performing diagnosis. SOLUTION: The failure diagnosis device 1 provided with a vehicle state diagnosis means 12 for detecting failure by diagnosing the state of a vehicle and a failure information recording means for recording information concerning failure detected by the vehicle state diagnosis means 12 comprises: a diagnosis environment determination means 13 for determining a diagnosis environment; and a recording destination selection means 14 for selecting the failure information recording means recording information concerning failure on the basis of a determination result by the diagnosis environment determination means 13. The failure information recording means has a volatile recording means 10 for temporarily recording information concerning failure and a nonvolatile recording means 11 for permanently recording information concerning failure. The recording destination selection means 14 prohibits the nonvolatile recording means 11 by a recording destination of information concerning failure when determining that a diagnosis environment is a prescribed environment by the diagnosis environment determination means 13. COPYRIGHT: (C)2007,JPO&INPIT
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